Can broom plants from my garden rooted in water now be kept over winter as a houseplant to plant in the spring?

Question

Canada, zone 4a, hardiness 40.

Answer 1

Broom plants are hardy to zone 5, so yes, you would need to overwinter it indoors to keep it sheltered till spring. I would plant it in soil, though, and not keep it in water all winter. Keep it in a sunny spot free of drafts from the furnace.

These articles should help:

https://www.gardeningknowhow.com/ornamental/shrubs/broom-plants/how-to-plant-broom-shrubs.htm

https://www.gardeningknowhow.com/garden-how-to/info/what-is-overwintering.htm